It's probably the transmission, to bad it wasn't a v6 trans or you would be covered.
Why don't you call Honda's 800 cust. service number and tell them it was having systoms before the warrenty was up but the dealer couldn't verify it. Then just bitch about there tranny problems and say your done buying hondas and your going to buy a yota. Don't try to get anything from a dealership, go over them and call honda's 800 number.